The M 1 A1 (Heavy Armor) "Abrams" is currently the most-up-to-date standard American tank. The front turret armour incorporates depleted uranium and the breaker plates on the turret are equipped with special valves. This is the form in which the " Abrams" was used in "Desert Storm" and it is the tank currently used by the American forces - including in Europe. The M 1 A1 is driven by an AGT 1500 gas turbine developing 1,500 hp and reaches a maximum speed of 66 km/h. The crew of 4 are equipped with a 120 mm smooth bore gun and a coaxial 7.62 mm MG for artillery battles. They can also use a 12.7 mm and a 7.62 mm anti-aircraft gun.